PIC16C65BT-04E/L - 8-Bit 4MHz OTP MCU 7KB Flash 44-PLCC | Microchip
N.º da peça: PIC16C65BT-04E/L ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.2 | $112,00 |
| 100 | $9.85 | $985,00 |
| 500 | $8.4 | $4.200,00 |
| 1.000 | $7.1 | $7.100,00 |
PIC16C65BT-04E/L Visão geral
What is a PIC16C-series microcontroller? The PIC16C family is Microchip's classic mid-range 8-bit RISC architecture, using a Harvard design with separate program and data buses, a 14-bit instruction word, and a deterministic 4-cycle instruction pipeline. As a member of the broader microcontroller hierarchy (MCU -> 8-bit MCU -> RISC MCU -> PIC mid-range -> OTP variant), the PIC16C65B targets applications where field programmability is not required and low unit cost is paramount.
Key features include 7KB OTP program memory allowing one-time per C-code burn-in, 192 bytes of SRAM data memory, 33 I/O lines with high-current sink/source capability for direct LED or relay drive, and a wide 2.5 V to 5.5 V operating voltage range that simplifies power-tree design in industrial and automotive environments. The extended (-40C to +125C) automotive temperature grade enables under-hood deployment without additional thermal hardening.
The PIC16C65B uses CMOS, fully-static process technology with an external oscillator interface that accepts crystal, ceramic resonator, or external clock inputs. Its 14-bit-wide instruction set enables single-cycle arithmetic plus branch operations, while the dual PWM and Capture/Compare peripherals simplify motor-control and switch-mode power-supply feedback loops. Brown-out Reset and the integrated Watchdog Timer provide the deterministic recovery required by automotive and industrial safety standards.
Typical applications include automotive body controllers and HVAC panels, industrial sensor interfaces, motor-control front-ends, lighting-control modules, and home-automation hubs. The combination of OTP memory, extended temperature range, and rich peripheral mix makes it well suited for high-volume, fixed-function commercial and automotive embedded designs.
When designing with this MCU, reserve one I/O line for In-Circuit Serial Programming (ICSP) and pair the external oscillator with the manufacturer-recommended loading capacitor values (typically 15-33 pF) to guarantee frequency stability across the automotive temperature window. The PLCC (J-Lead) package allows socket-mounting for prototype and low-volume production.
This page synthesizes current distributor inventory, pricing, drop-in replacement candidates, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a one-stop reference for sourcing and qualifying the PIC16C65BT-04E/L.
Alternativas drop-in para PIC16C65BT-04E/L — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16C65BT-04E/L (mesmo formato e footprint) — diferindo em Mounting Type, Package, Timers, Core Architecture, Program Memory Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16C65B-04E/L
✅ Drop-In✓ Em estoque
$10.85 / unidade
Ver ficha técnica →PIC16C65B-04I/PQ
✅ Drop-In✓ Em estoque
$5.45 / unidade
Ver ficha técnica →PIC16C65B-04E/PQ
✅ Drop-In✓ Em estoque
$11.1 / unidade
Ver ficha técnica →PIC16C65B-04I/P
✅ Drop-In✓ Em estoque
$3.75 / unidade
Ver ficha técnica →PIC16C65B-04E/P
✅ Drop-In✓ Em estoque
$5.45 / unidade
Ver ficha técnica →PIC16C65B-20I/PQ
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16C65B-20I/P
✅ Drop-In✓ Em estoque
$5.42 / unidade
Ver ficha técnica →PIC16C65BT-04E/L Classificações máximas e características elétricas
| Core Architecture | 8-bit PIC RISC (mid-range) |
| Family | PIC16CXX |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7KB (4K x 14) |
| RAM Size | 192 bytes |
| EEPROM Size | None |
| Frequência máxima de clock | 4 MHz |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Number of I/O Pins | 33 |
| Encapsulamento / Caixa | 44-PLCC (J-Lead, 16.59 x 16.59 mm) |
| Temperature Grade | Automotive (Extended -40C to +125C) |
| Oscillator Type | External (crystal/ceramic/clock) |
| Communication Interfaces | I2C, SPI, UART/USART |
| Timers | Two 8-bit + one 16-bit |
| PWM Modules | Dual Capture/Compare/PWM |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Tipo de montagem | Surface Mount (PLCC socket-compatible) |
Configuração de pinos do PIC16C65BT-04E/L
| Pino 1 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pino 2 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pino 3 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pino 4 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / ADC reference |
| Pino 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 6 | RA5/SS/AN4 — PORTA bit 5 / SPI slave select / analog input 4 |
| Pino 7 | RE0/RD/AN5 — PORTE bit 0 / parallel-port read / analog input 5 |
| Pino 8 | RE1/WR/AN6 — PORTE bit 1 / parallel-port write / analog input 6 |
| Pino 9 | RE2/CS/AN7 — PORTE bit 2 / parallel-port chip-select / analog input 7 |
| Pino 10 | VDD — Positive supply (5 V) |
| Pino 11 | VSS — Ground |
| Pino 12 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| Pino 13 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| Pino 14 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / clock in |
| Pino 15 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pino 16 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Pino 17 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 18 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 19 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 20 | RC6/TX/CK — PORTC bit 6 / UART transmit / clock |
| Pino 21 | RC7/RX/DT — PORTC bit 7 / UART receive / data |
| Pino 22 | RB0/INT — PORTB bit 0 / external interrupt |
| Pino 23 | RB1 — PORTB bit 1 |
| Pino 24 | RB2 — PORTB bit 2 |
| Pino 25 | RB3 — PORTB bit 3 |
| Pino 26 | RB4 — PORTB bit 4 |
| Pino 27 | RB5 — PORTB bit 5 |
| Pino 28 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pino 29 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pino 30 | VSS — Ground |
| Pino 31 | RD0 — PORTD bit 0 |
| Pino 32 | RD1 — PORTD bit 1 |
| Pino 33 | RD2 — PORTD bit 2 |
| Pino 34 | RD3 — PORTD bit 3 |
| Pino 35 | RD4 — PORTD bit 4 |
| Pino 36 | RD5 — PORTD bit 5 |
| Pino 37 | RD6 — PORTD bit 6 |
| Pino 38 | RD7 — PORTD bit 7 |
| Pino 39 | VSS — Ground |
| Pino 40 | VDD — Positive supply (5 V) |
| Pino 41 | MCLR/VPP — Master clear reset / programming voltage |
| Pino 42 | NC — Not connected (per datasheet) |
| Pino 43 | NC — Not connected (per datasheet) |
| Pino 44 | NC — Not connected (per datasheet) |
Aplicações típicas
PIC16C65BT-04E/L é adequado para 6 aplicaçãos: Automotive Body Controllers, Industrial Sensor Interfaces, Motor Control Front-Ends, Lighting Control Modules, Home Automation Hubs, HVAC Control Panels.
Automotive Body Controllers
The PIC16C65BT-04E/L fits automotive body-control modules because its 44-pin PLCC package, automotive -40C to +125C temperature grade, and 33 high-current I/O pins enable direct drive of relays, solenoids, and LED indicators in central body computers controlling lighting, door locks, and window lifters. The 7KB OTP memory holds fixed body-control firmware at the lowest unit cost, while the integrated Brown-out Reset and Watchdog Timer provide the deterministic recovery required by automotive safety standards. The dual Capture/Compare/PWM modules generate precise signals for motor-control loops, and the UART/USART interface connects to body-network LIN or K-Line transceivers for diagnostic communication with the vehicle's central gateway.
Recomendado
Industrial Sensor Interfaces
The PIC16C65BT-04E/L suits industrial sensor-interface boards because its 4 MHz RISC core delivers deterministic 1-microsecond instruction cycles for time-critical sensor polling, and the 33 I/O pins accommodate multiple discrete and analog sensor inputs simultaneously. The 7KB OTP memory stores fixed sensor-fusion and calibration firmware at minimal unit cost, while the I2C and SPI peripherals communicate directly with digital temperature, pressure, and flow sensors. The extended -40C to +125C automotive temperature grade tolerates factory-floor thermal swings, and the integrated Brown-out Reset guards against supply brown-out events common in industrial 24 V bus environments, providing the reliability required for unattended process-control installations.
Recomendado
Motor Control Front-Ends
The PIC16C65BT-04E/L serves as a motor-control front-end because its dual Capture/Compare/PWM modules generate complementary PWM outputs at programmable frequencies for driving half-bridges or full H-bridges controlling DC and stepper motors. The 4 MHz instruction cycle provides the resolution needed for smooth low-speed torque control, while the 16-bit timer captures feedback-encoder pulses for closed-loop speed regulation. The 192 bytes of SRAM buffer motor-state variables and PID-controller coefficients, and the 7KB OTP memory stores application-specific motor profiles at minimal unit cost. The automotive temperature grade allows deployment in under-hood and industrial motor-drive environments without additional thermal hardening.
Recomendado
Lighting Control Modules
The PIC16C65BT-04E/L fits lighting-control modules in architectural and stage-lighting installations because its 33 I/O pins directly drive high-current TRIAC or MOSFET stages for dimmer circuits, while the 7KB OTP memory stores preset scenes and dim curves at minimal unit cost. The Capture/Compare/PWM modules generate phase-angle or PWM dimming signals synchronized to the AC line, with the 16-bit timer providing zero-crossing detection for leading-edge dimmers. The extended temperature range allows deployment in unconditioned enclosures, and the Brown-out Reset ensures clean lamp shutdown during brown-out events. The UART peripheral accepts DMX-style control commands from a central lighting console for architectural and entertainment lighting.
Recomendado
Home Automation Hubs
The PIC16C65BT-04E/L serves as a fixed-function controller in home-automation hub designs, where its 7KB OTP memory holds pre-validated firmware for tasks such as PIR motion aggregation, thermostat scheduling, and HVAC damper control without the cost overhead of Flash. The UART/USART interface bridges to wireless transceivers for X10, Zigbee, or proprietary RF links, while the I2C peripheral reads room-temperature and humidity sensors. The 4 MHz CPU clock executes the control loop in real time, and the Brown-out Reset protects against power-glitch-induced lockups common in wall-wart-powered hubs. The automotive temperature grade tolerates attic and basement deployments where ambient temperatures swing widely.
Recomendado
HVAC Control Panels
The PIC16C65BT-04E/L fits HVAC control panels because its automotive -40C to +125C temperature grade survives rooftop-unit thermal cycles, while its 33 I/O pins drive seven-segment displays, keypads, relay coils, and triac outputs for compressor and fan stages. The 7KB OTP memory stores fixed control algorithms and safety interlocks at minimal unit cost, and the dual PWM modules generate variable-fan-speed drive signals. The 16-bit timer captures tachometer feedback from blower motors for closed-loop airflow control, while the integrated Brown-out Reset and Watchdog Timer satisfy the safety expectations of HVAC OEMs. The UART peripheral supports service-port diagnostics for HVAC technicians in the field.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16C65BT-04E/L — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16C65B-04E/L | PIC16C65B-04I/PQ | PIC16C65B-04E/PQ | PIC16C65B-04I/P |
|---|---|---|---|---|---|
| Package | 44-PLCC (J-Lead) | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 7KB OTP | 7KB OTP | 7KB OTP | 7KB OTP | 7KB OTP |
| RAM Size | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| Number of I/O | 33 | 33 | 33 | 33 | 33 |
| Temperature Grade | Automotive -40C to +125C | Automotive -40C to +125C | Industrial -40C to +85C | Automotive -40C to +125C | Industrial -40C to +85C |
| Packaging Format | Tape & Reel | Tray | Tray | Tape & Reel | Tray |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- Automotive -40C to +125C temperature grade on a 4 MHz mid-range core (vs PIC16C65B-04I/L)
- 33 high-current I/O pins in a 44-pin PLCC package (vs PIC16C63A-04E/SS)
- Dual Capture/Compare/PWM modules plus three timers (vs PIC16C65B-04I/P)
Notas de projeto
The PIC16C65BT-04E/L operates from 2.5 V to 5.5 V with typical 5 V supply. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of each VDD pin (two VDD pins: 10 and 40), plus a bulk 10 uF tantalum or electrolytic capacitor at the board power entry. Brown-out Reset threshold is approximately 4.0 V at 5 V nominal; ensure supply rise time is faster than the BOR detection window to avoid spurious resets on power-up.
Place the external crystal (typically 4 MHz fundamental) within 10 mm of OSC1 and OSC2 pins (12 and 13). Use 15-33 pF loading capacitors per Microchip's oscillator design guide, matched to the crystal's load specification. Keep oscillator traces short and surrounded by ground pour to minimize EMI radiation and susceptibility. For noisy environments, consider a four-pin crystal module instead of a discrete resonator.
Reserve RB6 (pin 28) and RB7 (pin 29) for In-Circuit Serial Programming (ICSP) - they double as PGC and PGD during programming. Route these signals to an ICSP header with no series resistors, and keep the MCLR/VPP pin (41) accessible with a pull-up to VDD (typically 10 kohm) for normal operation while allowing programmer pull to VPP during programming. Without these provisions, OTP parts cannot be programmed in-circuit.
OTP memory is one-time programmable only - any mis-programmed device must be discarded. Always verify firmware on a Flash-equivalent PIC16F877A first before committing to PIC16C65B production programming. Watchdog Timer (WDT) is enabled by configuration fuse - if enabled, the WDT must be cleared via CLRWDT in all main loops, or the MCU will reset every ~18 ms (default postscaler).
Informações de conformidade
RoHS and REACH compliance status not stated in the verified web data; the automotive extended temperature grade (-40C to +125C) suggests automotive use, but AEC-Q100 qualification is not confirmed in the datasheet excerpt provided. For automotive safety-critical applications, request Microchip's PPAP and qualification certificates directly.
